SSTS_BUSY
if ((bus_space_read_1(iot, ioh, SSTS) & SSTS_BUSY) != 0) {
while ((bus_space_read_1(iot, ioh, SSTS) & SSTS_BUSY) != 0) {
if (hd->scsi_ssts & (SSTS_INITIATOR|SSTS_TARGET|SSTS_BUSY))
while ((hd->scsi_ssts & SSTS_BUSY) == 0) {
if ((hd->scsi_ssts & (SSTS_INITIATOR | SSTS_TARGET | SSTS_BUSY)) != 0)
if ((bus_space_read_1(iot, ioh, SSTS) & SSTS_BUSY) != 0)
if ((bus_space_read_1(iot, ioh, SSTS) & SSTS_BUSY) != 0)